Premature Ventricular Contraction: eMedicine Emergency Medicine

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Premature Ventricular Contraction: eMedicine Emergency Medicine

emedicine.medscape.com —

Overview: Premature ventricular contraction (PVC) is caused by an ectopic cardiac pacemaker located in the ventricle. PVCs are characterized by premature and bizarrely shaped QRS complexes usually wider than 120 msec on with the width of the ...

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Tags: Heart, Premature Ventricular Contractions, Emergency, Emergency Medicine

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Most Recently Shared on April 14, 2010 at 5:51 pm By:

Health_SS Susan S

Premature ventricular contractions are common, and you may have no symptoms. What causes PVC and is it dangerous? http://bit.ly/bHqgQf

2 years ago...

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Ventricular Fibrillation: eMedicine Emergency Medicine

emedicine.medscape.com — “Overview: Ventricular fibrillation (VF) begins as a quasiperiodic reentrant pattern of excitation in the ventricles with resulting poorly synchronized and inadequate myocardial contractions. The heart consequently immediately loses its ability to function as a pump. As the ...” View full resource at emedicine.medscape.com

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Most Recently Shared on April 25, 2010 at 3:41 am By:

SusanS_Health Susan Scroggins Active Health Library and Health Advocate

The etiology of ventricular fibrillation (VF) remains incompletely understood. http://bit.ly/cnWdad

2 years ago...

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